The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 1995
Filed:
Dec. 16, 1991
Applicant:
Inventors:
Philip L Bartlett, Wilmington, DE (US);
Joseph A Creazzo, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C09K / ;
U.S. Cl.
CPC ...
521 88 ; 252171 ; 252305 ; 252D / ; 264 54 ; 264D / ; 424 45 ; 521 98 ; 521114 ; 521131 ; 521146 ; 521154 ; 521155 ; 521910 ;
Abstract
Substantially constant boiling blowing agent compositions of 1,1,1,2-tetrafluoroethane and dimethyl ether.